Lock for combination lighting and ignition switches



June 26, 192s. ,1,674,865

W. KAISLING LOOK FOR COMBINATION LIGHTING AND LIGNITION SWITCHES Original Filed June e, 1917 2 sheets-sheet 1 Y lIIIII June 26, 1928.

- w. KAIsLlNG LocK'FoR COMBINATION LIGHTING AND IGNITION swITcHEs 1917 2 sheets-sneer original Filed nme G "stares Parar carica.

WILLIAM KAISLING, OF CHICAGQILLINOIS, ASSIGNOI?. T' KELLOGG- SWITCH'BOARD AND SU'PPLY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

LOCK FOR COMBINATION LIGHTING AND IGNITION SVITCI-IES.

Grginal application filed June My invention relates to electrical s witches in general and has to do more particularly with switches ,for controlling a plurahtyof circuits, the present embodiment otmy 1nvention being constructedinore particularly for use in connection with ignition and light circuits for automobiles.r This application is a division of my application S. N.173,084, filed June G, 1917. l

It is an object oiE my invention to produce novel means for holding a cylinder lock in position. VMy invention as disclosed in this application has to do with the locking mechanism which controls the ignition lighting switches, and in one aspect has to dov with the novel means for Vholding `the lock in position relative to the mechanism that locl s the switches against actuation. My, invention has in general to do with the complete locking mechanism of the switch. Reference may be had to the accompanying drawings forming a part hereof, in which the same reference characters indicate like parts throughout the several views, and in which Fig. 1 is a face view of the combination switch of my invention;

Fig. 9. is a right side elevation of Fig. l1;

Fig. 8 is a rear view of Fig. 1;

Fig. 4 is an interior face view of the mechanism with the cap removed;

Fig. 5 is a right-'side elevation 'of Fig; 4,

omitting the mechanism on the back of the mounting plate; n

Fig. 6 is a lett. side elevation of Fig. 4, omitting the mechanism on the back of the mounting plate; y

Fig. 7 is ay bottom view of Fig. 4, showing one ot' the springs broken away and omitting the mechanism on the back of the mounting plate;

Fig. 8 is a partial view of the interior Y mechanism. part of the apparatus `being re moved to more clearly show the locking arrangement. the switching knobs being at normal and unlocked;

Fig. 9 is similar to Fig. S, showing the locking mechanism in its operated position;

Fig. 10 is a sectional view through the lighting switch unit to more clearly show the supporting means of the actuating member;

Fig. 11 is a sectional view through the locking mechanism;

6, 1917, seria; rra-173,054.

Serial No. 453,494.

Divided and this application inea March 18,

Figs. 12, 13 and 14 illustrate the normal and two actuating positions of the lighting switch unit;

Figs. 15 Vand 16 illustrate the normal and actuated positions ot the ignition switch unit;

Fig. 17 is a side view of the overload relay associated with the switch;`

Fig. 18 is a sectionalv view of the relay taken on the line 18-18 of Fig. 3;

Fig. 19 is a perspective view of the armature of the` overload relay;

Fig. 2O is a perspective view of one of the Contact springs, and n Fig. 21 is a partial sectional view showing the method ot' securing a spring to the mounting plate. Y y

Referring now in general to my invention as illustrated, it comprises a lighting switch unit L and an ignition switch unit M. The lighting switch unit L has a normal position A and two operative positions B and C, and when the switch is in position B the head lights, tail lightand cowl light are lighted brightly to full candle power, and when in position C thev head lights are dimmed, butv the tail and cowl lights remain at the same brilliancy as when the lighting switchunit L was` in its position B. I do not wish to be limited to this particular arrangement, as many Ydiflerent combinations can be made without depart-ing from the invention.

' The .ignition switch unit M has a normal position D and an operative position E, and when the ignition switch is moved into position E, the ignition apparatus is rendered operative and the horn circuit is closed, las will be more fully hereinafter described. I also provide locking mechanism which consist-s` preferably of a standard tumbler lock which controls a sliding lock plate which is adapted to lock the lighting and ignition switch units L and M. The locking mech- Vanism is so arranged that it operates only when the switch M is 1n its normal or mop-- erative position D,.but will operate to lock the switch L in any position. lVhen the ignitionswitch unit. M is in its position D, the lock can only be turned part way by the key. Now, it the operatorV attempts to operate the lock, he is at once aware that the ignition switch is in its operative position of the same, t-he said plate having vention as illustrated, it comprises preferLk ably a mounting base or plate 1 made of any suitable insulating material, having studs 2 and 3 fastened to it in any suitable manner, as by staking (as illustrated in Fig, 10). The stud 2 is provided for the lighting switch unit L, and the stud 3 for the ignition .switch unit M. rThe. lighting switch 'unit L comprises a switching knob 4 prefer`- ably moulded inthe torm illustrated in Figs. 4, and 6, and made ot' any suitable insulating moulding material such as bakelite or Athe like. The knob 4 is provided with a bearing 5 into which theV stud 2 `tits (as-shown in Fig. The knob 4 is also provided with a button 4 integrally formed with said knob, the button being adapted to be grasped by the hand ot the operator tor operating the lighting' switch unit L. A conducting `plate 6 is provided, preferably set in the said knob during the .moulding l port-ions 7, .8 and 21 turned at right angles to the F said plate 6 to .form .conducting segments whichcooperatev with the Contact springs 9, 10 and 11 associated with the lighting switch unit L. The springs 9, 10 and 11 are all similar in shape and are all secured to the plate 1 in the same manner, so that by describing the method for securing spring 9, a further description ot' the method of fastening'the others will be unnecessary.

rIhe spring 9` (formed as illustrated in Fig. 2O) has its free extremity bent substantially parallel with the attached portion ot the arm 13, the free end being rounded to iorm a contact portion 14 for engagement with the knob 4 and its conducting strips 7 andy 8. The springnormally rests on.tlie concave portion 15 of the annular surface 15 of button 4. The tongue 9 of the spring 9 is forced into a suitable opening 1G in the plate 1, the said opening 'being slightly smaller than the tongue 9 so as to produce a forced tit. Thespring 9 is provided with shoulders 17 which. rest against the top surface of the plat-e1 when the spring is in position, and with shoulders 13 which ei;-

tend slightly beyond the bottom surface ot@ the plate 1. The shoulders 18 are turned over or riveted to hold the said spring in position to prevent it trom being withdrawn fromI the said plate 1. To produce a snap action. when the switchingv knob 4 is moved to its dii'erent operative positions, a portion of the' annular surface 15 of the knob is corrugated or formed into 'concave portions, and the conducting segments 7, 8 and -21 are also corrugated and vprovided with concave portions Aso that'when the switching knob 4 is in the position illustrated in Figs. 4, 5 and 6, the tree ends of the springs 9, 10 and 11 restin` these concave portions. Now, when the switching knob 4 is moved from one position to another, the "free ends of the Vsprings leave the turrows 2O of the corrugated portions and ride upon ridges 19, and due to the springs being under tension, whenthe springs leave the'apexes ot the ridges 19 they tend to turn the knob 4,

thus producing a snap action for the said switching knob, at the same time the springs hold the said switching knob 4 in its new position. VThe springs 9, 10 and ,11 have their respective tongues 9, 10 and 11 extend through the platel to form connecting terminals. i

. A clamping member 23 is provided tor each of the springs 10 and 11, and provides means .tor securing electrical.' conductors to the said springs. A threaded vscrew 24 "is provided with asplit lock washer 25 torA securely holding the electrical conductors .between the said switch spring tongues .10 and 11, and the contact surfaces ot the clampm0 members 23. Tongue 9 of the sarin(I i1 b if;

9 is connected to one terminal otv the wind-y ing of. the overload relay by means of a screw 24 and lock washer 25.

For purposes that will be more. fully ereinatter described, a resistance coil or unit 28V is connected to the terminals ot' the contact springs 10 and 11, this resistance coil being used inthe lighting circuit arrangement to cut down Vthecurrent How through the lighting circuit to dim the lights contained therein. When the lighting switch is in normal position A, the lighting circuits are open, as the contact springs 9 and 11 rest upon insulated portions of the annular surface 15 ot the knob 4. lWhcn the switching knob 4 is movedto position B, the contact springs 9 and 10 engage the segment 8, and spring 11 engages the segment 21, asrelearly illustrated in Fig. 13, thus giving one combination of lights. lt the switching knob 4 is now'moved to'position C. the contact spring 9 engages the segment 7, the contact spring lO engages an insulated portion ofthe annular surface 15 vand the spring 11 engages a portion of the segment 8, thus givingl the same combination of lights but cutting in the resistance 28 to dim theheadlights, as will be more fully hereinafter described. I.

`Referring now to the ignition switch M, it comprises a switching knob similar in construction to the knob 4 of the lighting switch unit L, with the exception of theV iso ' tact springs 31 number of conducting segments and spring' combination associated with the Ysaid seg-r Contact springs 31, 32, 33 and 34" associated Vwith the vi'gi'iition switch unit lil a similar mannerto that described in connection with the conments.

are mounted in plate 1 in 32, 33 and'34 associated with the ignition switch M have their tongue portions 31, 32,

33 and 54l extend through the bottoni et the plate 1 to form termina-l members tor their respective springs, 25, and clamping members 23 being provided for the said terminals, as previously vdescribed `in connection with the lighting switch unit L. The Contact springs and 33 are formed similarlyV to those associated The conwith vthe lighting switch unit L.

and 34 are L-shaped, Vthe 'tree ends of the said springs 31 and 34 being shaped to conform to the annular surface ofthe knob 30. A portion of the annular surface 40 is also corrugated or concave, tor purposes already described in connection with the lighting switch unit L;

When the ignition switch M is in its normal position D, there is no ciicuit connection between the contact springs (as illustrated in Fig. 15'). iiVhen the switching knob 3() is moved to yits position E, the Contact springs 31, 32,33 and 34 engage their respective conducting segments 36,37, 38 and 39 (as illustrated in Fig. 16) to close oper-- Aating circuits that will be more fully hereinai'ter described. y l A A locking arrangement, whereby the' lighting and ignition switch units L and M may be locked against movementfis provided and Vincludes a well known tumbler lock which is operatively associated with a slidable lock ing plate 62. T he plate 1 is provided with a pair ot concentric recesses 54 and 54 in steps of decreasing diameters. and notches 55 and 56 in the recess54 are adaptedto receive a pair ot depending lugs 52 and 53 integrally 'formed with the barrel v51 of the lock 50, Vand the notches 55 and 56 in the recess 54 are slightly smaller than the size ot the lugs 52 and 53 to provide a nforce tit to insure a firm seat for the lock 50. The cylinder 61 of the lock 50 protrudes through the barrel 51 and extends into the recess 5t in therplate 1 and the lugs 52and 53 on the barrel 51 restingA in the notches 55 and 56 in combination with the cylinder end resting in the recess 54 insures a firm seat .tor the lock to prevent the lock from tiltingwhen positioned as just described. vThe cylinder provided witha pin '60 which is tothe cylinder 61v and as the cylinder' 61 is screws 24, lock washersv 30 removed. p 'the ignition switch unit M so that it can may be locked in any oi' its mal positions, The switching knob 4 ot' the'lighting switch 'i unit Lfis 'provided with a pin 7() suitably 'fastened to it-'or cooperating arcuate opening the plate 62 loperates with 'anism and the switching knobs 4 l 6liisi'arovided with f an enlarged head portion 51 oi a size4 toiit'into the circular ori- Vices 512 inithecover cap 95. `The lock fastened rotated through the agency of the key the pin rotates with the Vcylinder 61.l The recess 54 in the'plate 1 is oi" a size to permit a substantially Icomplete revolution of the pin 60 when the cylinder 61 of the lock is vrotated to operate the locking" plate 63 as will be more fully hereinafter described.

The locking mechanism includes a sliding lock `plate 62 set in a recess 630i' the plate 1. Qblongopeningsl 64 and 65 are provided inthe locking plate 62 through which eX- tends the studs 2 and 3. Collarsf66 and 6T are kprovided which slipl over said studs 2 and' 3 and rest in the openings 64 and 65 oit said plate 62 .to form guiding meansr i'or the! plate 62. The collars 66 and 67 also maintain the sliding plate 62 in its' position inV recess The knobs 4 and SO keep the collars 66 and 67 in position.' These collars cannotbe removed until the cover-cap 95 is first removed and then the knobs 4 'and I have prei'erably arranged only be locked in vits inoperativevpositioii D,fand the lighting switch unit L so that it actuated or nor- `as hereinbetore mentioned.

` with an 71 in the plate 62. Three short slots 72, 73 and 4 arc also provided in and extend into the arcuate opening T 1. lThese slots cooperate with the ypiniO or' rthe ligl'iting switch knob 4 to lock -the said knobiin any of its different posiftions. the plate 1 svitch knob 4 by the pin An arcuate recess 7 5 is provided in to limit the movement oi the engaging the ends ot thesaid recess 75. A pin 8O is also secured tothe ignition switching knob 30 "and extends downward into an arcuate recess 81 in the plate 1, the said recess limiting the movement of the knob in its normal and actuated positions. The vpin also cothe locking plate 62 to lock the ignition switch, as will be more fully described. l A. 1n Fig. 8 I have shown the .locking mechand 30 ot the .switches L and ld in tlieir'iiormal position, and the locking mechanism inv an unactuated position. 1n Fig. 9 l have shown the locking mechanism operated and the switching knobs 4 and 30 of the switchesL and Min their normal'positions lbut locked against movement. To lockthe switch, the key 85 is turned untilthe pin 60 engages the pro-y jection 860i the plate .62. .Thismoves the plate 62 tothe right 'into the position shown inFig. 9. The pin .of the switching knob 4 4of lighting switch `L is now in the slot 73, thus preventing any movement of the switching knob 4 of the switch L, and the switching knob 30 ofthe ignition switch unit L cannot be actuateddue to the ledge' 87 of the plate 62 engaging the pin 80. Assuming now that the ignition switch is in its position E (the pin of the said switching knob 30 being shown in dotted line' in Fig. 8) and that the lighting switching knob 4 is in any of its operative positions, if the-key is inserted in the lock and an attempt made to operate thesaid lock, the key can only be turned part way until the edge 88 ot the plate 62 comes in contact with the pin 80. The key cannot be withdrawn when it is in this position, andvthis unsuccessful attempt to turn the key will indicate to the operator that the ignition switch member is in operative position. -Then to lock the two switch members L and M, the member M must be moved to its normal or inoperative position D, and when in this position the pin is beyond the edge 88 of the plate 62 and the key `can now be turned to lock the switch units L and M. The lighting switch unit L may be locked in either'of its actuated positions B or C, provided the ignition switch M is in its inoperative position D, as may readily be seen vfrom inspection of Figs. v8 and 9.v To yieldingly hold the plate62 in its locked or unlocked positions, I provide an arm 90 pivoted to the pin 91. Notches 92 and 93 are provided in the plate ,62 in which the arm 90 rests. The arm 90 is spring-pressed in the said notches by means o 'f the spring 94` which is suitably fastened to the plate 1.

A cap 95 is provided to enclose the mechanism and a top or name plate 96 is also provided, the two being held together by means of a stud 97 which is turned over or riveted after passing` through suitable openings in plates 95 and 96. Ferrules 98 and 99 are provided and pass through suitable openings in the cap 95 and the plate 96, the ferrules being of a size to permit the passage of the switching knobs 4 and 30. The errules are spun over the openings ofthe cap 95, to hold the plate 96 and the cap 95 in alignment. The ferrules 98 and. 99 are of a size to lit into the annular grooves in the knobs 4 and 30 as shownmost clearly in Fig. 10), thereby preventing the saidv knobs 4 and 30 from being raised off-of the pins or studs 2 and 3 until the cover cap 95 has iirst been removed.

i The cap 95 also holds the tumbler barrel 50 in position, as most clearly Shown in Figs. 2 vand 11. To remove the knobs 4 and 30`and the tumbler barrel 50, it is merely necessary to remove the cover-cap 95, and then the knobs 4 and 30 and the tumbler barrel 50 may 'be removed from the mounting plate 1. The'mounting plate 1 has an vannular shoulplate 1 by means of the pivot der 100 upon which the cap 95 rests-when in position, and the stud 97 passes .through a suitable opening 101 in the plate l. The said stud 97y is provided with a threaded end portion to receive a nut 102which holds the cap securely upon the plate 1. The cap v95 and the plate 9 6 are also provided with suitable openings for the lock 5,0. v

Associatedwith the switching device is an overload relay OL which comprises va heel iron 103 to which the core 104 of the relay is suitably fastened., A suitablev winding 105 is provided for the said relay and has one o1 its terminals secured to the terminal 9 and its other terminal connected to the contactpiece 10,6, which contact piece is suitably mounted upon an insulation plate 107, which plate is in turn mounted upon the heel iron. 103 by means of screws 108.

A contact spring 109 is inrnormal'engageo ment with the lcontact 106, the saidv spring being suitablyy fastened to the plate 107, the terminal oit' the said spring 109 being connected to the terminal 32.. An armature 110 is prov'ided'for the relay,fand is supported by the-heel iron 1 03. The heelriron 1,03 isprovided with upturned ears 111, the said ears being slotted at 111` to receive the extensions 110 of the armature 110. The armature 110 is pivotally supported bythe said slots 111', and is held in place by means of a pin 112 and aV spring 113. The said pin 112 fits into asuitable opening in the Acore of the magnet and extends through an opening 114 in the armature. 110.k The ten-` sion spring 113 has one end fastened to the tongue projection 1102 of the armature 110 by means of the rivet 115. The free end ol the said spring'113 is provided with a suitable opening 11,6 which isot' a size to .tit over the reduced portion ot the pin 112. This spring 113 pivotally secures the armature 110 in the ears 111 lot' the heel iron 103. The spring also holds the armature in its normal position under spring tension and also prevents the pinl 112 from displacement-in the core 1,04. An insulating button 117 is `suitably secured to the spring 109, and is `adapted to be engaged by the arma-- ture 110 to open the normally closed contacts 109 and 106, upon the energization of the said relay. The relay OL is held in place by means of the extension 103 of the heel iron 103, which extension is secured tov the terminal 9fby means of a screw 24. The spring'109 is provided with an extension `109 which' is secured to the terminal 32 by means of a screw 24.'

To remove vthe armature from vthe relay, it is only necessary to raise the spring 113, turn it to either side and remove the pin 112 from the core of the magnet, and' then the armature may be removed by slidingt-he armature ears 110 and 110 out of their bearings inv the heel iron of therelay.

While the invention has' been described with particular construction, it should be understood that it is not limited thereto, as many changes and modilieations may be made therein without departing therefrom, and l, therefore, wish to cover all such changes and modifications which rcome within the spirit and scope oi' the appended claims.

Vhatl claim as new and desireto secure by United States Letters Patent, is:

l. :A device of the character described including armountingpplate, an orice cut in said mounting plate, a lock barrelhaving a lock cylinder set partially into said oriiice, a cover for said orifice through which a portion ot said lock cylinder extends, said lock barrel being provided with a shoulder against which said cover lits to preventJ displacement of said lock barrel and cylinder, and means integrallyiormed on said lock barrel Vtor engaging an opening in said mounting plate to prevent the rotary movement ot said lock barrel. i v l 2. A cylinder lock having a case and projections extending be received in sockets formed in the spaced device provided withk an.

from each end of said case, said projectionsv constructed to be formed in spaced support-g and thereby retain'V case and proopposite end thereof, said reference to lthe details oiVV elements between which said cylinder lock' is mounted, wherebyy the lock is retained in its operative position between said elements.

switch casing having. a manually operable switch therein, a key controlled lock for preventing the operation of said switch, said lock having projections extending iti-oni the opposite ends thereof and constructed to project into orifices termed in the oppositeA .valls of the switch casing, whereby the lock is retained in operative position within said casing.

5. ln combination with a switch casingv having a manually. operable switch therein, a cylinder lock mounted within said casing for locking said switch, said cylinder lock having projections upon its opposite ends constructed to project into the opposite walls of said casing and thereby retain said lock in its operative position.

6. In a switch casing operable switch therein, a cylinder lock mounted in said casing for locking said switch, said lock provided with a case and a key plug rotatable therein, lugs formed upon said case and constructed to project into having a manually In combination with anr automobile sockets formed in one wall of ksaid switch` lugs retained-in said sockets byV casing, said the' opposite tace of said lock case engaging a second wall ot'said casing, whereby said cylin'derglock is retained in operative position within its switch casing.

7. ln combination with a switch casing ing a manually operable switch therein, a cylinder vlock for locking said switch, said lock comprising a case having a key. plug rotatable therein, said ject beyond said case into engagement with one wall of the switch casing, and lugs upon the opposite end of said lock case constructed to extend into the opposite wall of lSaid switch casing, whereby the cylinder lock is held between the opposite walls ot said 'casing and retained by said projections in operative position within said switch casing.

8. In combination with a switch casing having a manually operable switch therein, a plate slidably mounted within sai-d casing for locking said switch, a cylinder lock with- Ain said casing comprising a lock case and key plug, and means upon ,said key plug for operating said plate, said lock constructed to lbe retained between the Opposite walls of said switch casing, .and rearwardly projecting lugs upon the lock casing constructed to extendinto the rear wall o't the switch casing to thereby retain thecylinder lock in place within said switch ca sing.

9. n combination with arcceptacle having manually operable means therein, a cylinder lock within said casing :tor locking said means, said lock constructed to be held tween the opposite walls of said receptacle and provided withprojections extendinginto the opposite walls o'tsaid receptacle to therebyy retain said lock in its operative position within said receptacle.x i

l0. Apin tumblerlock having a case constructed to be positioned between the front and rear walls of a i'eceptaele in which it is mounted, said case provided with projections constructed to extend into said walls to thereby retain said lock in place within said receptacle.

1l. ln combination with a cylinder lock, a su pportingplate having sockets formed therein, means 'for retainingsaid upon said plate, comprising lugs upon said lock projecting into said sockets, and means engaging the opposite Vtace of said lock for retaining said lugs in said sockets.

l2. A pin tumbler lock having projections extending from the opposite ends thereof tor retaining the lock in place.

13. A cylinder lock having lugs projecting from one end thereof and the key plug projecting from the opposite end thereof for retaining said lock in place.

la. In combination with a receptacle having separate front and rear walls, a pin tumbler lock having a case within said receptacle,

hav-

lock in placey key plug constructed to proico llO

" said lock in place within said receptacle.

15.`In combination with a Switch casing having separate front and rear walls, aipin tumbler lock having a case within said switch' casing, projectionsextending from Lio' said case into said walls, and means yto'rv securingsaid walls in their spaced relation, said last-mentioned means `serving also to secure said lock in place within said casing.

16. In combination-with a pair of spaced mounting plates, a pin tumbler lo'ck'having a case and a key bai-rel, said key barrel constructed to project from Asaid case into said plates to secure said lock in place between said plates, and means extending` `trom said case into one of said plates to prevent relative rotation therebetween.

17. In combination with a pair of spaced mounting plates, a cylinder lock having a Case and a. key barrel, said key barrel having its outer end extending beyond the face ot said case, said case having rearwardly projecting ylugs formed thereupon', said lugs and outer end oit the key barrel projecting into said plates to secure the lock in place therebetween;

r 1'8. In combination with a pair of spaced mounting plates, a cylinder lock having a case, said case having a key barrel extending therefrom in one direction and lugs eXn tending from the case in the opposite direction, said lugs and key barrel projecting into said plates to secure the cylinder lock in place therebetween.

19. In combination with a pair of spaced mounting plates, a pin tumbler lock applied to the rear tace of the :forward plate and having a case and a keybarrel, rearwardly projecting lugs upon said' case, said rear plate having lug-receiving sockets formed therein, said lugs seated in said sockets and retained therein by the forward plate against which the outer face of the lock case abut-s.

20. In combination with a pair of spaced mounting plates having a drill hole in the .forward plate and sockets in the rear plate, a pin tumbler lock having a case and a key barrel, rearwardly projecting lugs upon said therebetween, whereby case seated in said sockets, said key barrel having itsr outer end eXtendingAt-hrough sa'id drill hole, and'said spaced plates positioned to prevent said Vlock from moving axially said lock isV retained in place.

2l. In combination with a pair ot' spacedl mounting plates, a cylinder lock having a case, means projecting vfrom the opposite said lock therebetween, whereby separation ot' said plates releases said lock from both of .said plates.

'ends of said case into ysaid plates to secure 23. In combination with a pair of spaced mounting plates, a cylinder lock havingva case retained therebetween, and means pro-Y jecting trom the opposite ends of said case into said plates tor securing said lock in place between said plates.

24. In combination with a pair of spaced mounting plates, a cylinder lo-ck having la caseretained therebetween, means projecting from the opposite ends of said case into said plates for securing said lock in place between said plates`,jand means slidably mounted on the rear spaced plate operated by said lock. y

25, In combination with a pair of spaced mounting plates, a cylinder lock havingv a vcase mounted between said plates, said case having aY rey barrel projecting vtrom one face thereof and having lugs projecting from the opposite tace thereof, said projecting end of theV key barrel extending through one plate and said lugs projecting into the other plate and holding the lock case in spaced relation to said'last-mentioned plate, whereby the cylinder lock is secured in place between said plates, and means slidably mounted on said last-mentioned plate between the same and the end of the locking case, said means operated by said lock.

Signed by meat Chicago, in the county of Cook and State of Illinois,'this 3rd day of March, 1921'. Y

WILLIAM KAisLING. 

